Hi.
I've worked with this person for quite a few years. We've never got on, though I was always pleasant from the start. I don't actually take it too personally as apparently he doesn't like people in general, so said his wife.
Anyway, he's got a habit of pulling a face whenever I say something, as if to say I'm an idiot, which I don't think I am. He's incredibly condescending. I suppose it's passive-aggressive because he backs down whenever I've mentioned it. It's really tricky to deal with and I don't know how I haven't hit him yet.
I think he's resentful of me but I don't understand that because I don't really get like that about other people.
Any advice? Thanks.